package com.bootdo.app.common.utils;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.ConnectException;
import java.net.URL;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;


import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.bootdo.common.wx.MyX509TrustManager;


public class CommonUtil {
	  private static Logger log = LoggerFactory.getLogger(CommonUtil.class);
	  // 凭证获取（GET）
	  public final static String token_url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET";
	  /**
	   * 发送https请求
	   * 
	   * @param requestUrl 请求地址
	   * @param requestMethod 请求方式（GET、POST）
	   * @param outputStr 提交的数据
	   * @return JSONObject(通过JSONObject.get(key)的方式获取json对象的属性值)
	   */
	  public static JSONObject httpsRequest(String requestUrl, String requestMethod, String outputStr) {
	    JSONObject jsonObject = null;
	    try {
	      // 创建SSLContext对象，并使用我们指定的信任管理器初始化
	      TrustManager[] tm = { new MyX509TrustManager() };
	      SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
	      sslContext.init(null, tm, new java.security.SecureRandom());
	      // 从上述SSLContext对象中得到SSLSocketFactory对象
	      SSLSocketFactory ssf = sslContext.getSocketFactory();
	      URL url = new URL(requestUrl);
	      HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
	      conn.setSSLSocketFactory(ssf);
	      conn.setDoOutput(true);
	      conn.setDoInput(true);
	      conn.setUseCaches(false);
	      // 设置请求方式（GET/POST）
	      conn.setRequestMethod(requestMethod);
	      // 当outputStr不为null时向输出流写数据
	      if (null != outputStr) {
	        OutputStream outputStream = conn.getOutputStream();
	        // 注意编码格式
	        outputStream.write(outputStr.getBytes("UTF-8"));
	        outputStream.close();
	      }
	      // 从输入流读取返回内容
	      InputStream inputStream = conn.getInputStream();
	      InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
	      BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
	      String str = null;
	      StringBuffer buffer = new StringBuffer();
	      while ((str = bufferedReader.readLine()) != null) {
	        buffer.append(str);
	      }
	      // 释放资源
	      bufferedReader.close();
	      inputStreamReader.close();
	      inputStream.close();
	      inputStream = null;
	      conn.disconnect();
	      jsonObject = JSON.parseObject(buffer.toString());
	    } catch (ConnectException ce) {
	      log.error("连接超时：{}", ce);
	    } catch (Exception e) {
	      log.error("https请求异常：{}", e);
	    }
	    return jsonObject;
	  }
	  
	  /**
	   * URL编码（utf-8）
	   * 
	   * @param source
	   * @return
	   */
	  public static String urlEncodeUTF8(String source) {
	    String result = source;
	    try {
	      result = java.net.URLEncoder.encode(source, "utf-8");
	    } catch (UnsupportedEncodingException e) {
	      e.printStackTrace();
	    }
	    return result;
	  }
	  /**
	   * 根据内容类型判断文件扩展名
	   * 
	   * @param contentType 内容类型
	   * @return
	   */
	  public static String getFileExt(String contentType) {
	    String fileExt = "";
	    if ("image/jpeg".equals(contentType))
	      fileExt = ".jpg";
	    else if ("audio/mpeg".equals(contentType))
	      fileExt = ".mp3";
	    else if ("audio/amr".equals(contentType))
	      fileExt = ".amr";
	    else if ("video/mp4".equals(contentType))
	      fileExt = ".mp4";
	    else if ("video/mpeg4".equals(contentType))
	      fileExt = ".mp4";
	    return fileExt;
	  }
	}
